Sally - There's lots of people on this forum who aren't sub 4 or 5 hours. That do implement a run/walk strategy but in your updated post you came across as saying a big "F*** you" to those who were trying to offer support and advice.
It's nothing about you being a newbie/jogger/runner - it's about simple respect of others.
Everyone who completes a marathon- should be congratulated. I completely agree. Not everyone can do the full 26.2 miles - but you need to realise how your comment could have come across; which is why I think you've got a bit of stick. I'm not a fast runner (far from it) but I realise that most of the "experts" on here have several thousand miles more of experience than me and are worth listening to.